I got out of my E90 330d for a test drive in an F11 520d. Lovely car and the power is surplus to requirement in all driving situations. Well, legal driving situations. When you want to go for it, it's not going to fly like the 30d but that said, it is adequate and plenty smooth.
Much love for the 5 Series. My old E60 520d was a good car too.
2006 BMW E60 520d SE 6MT
2009 BMW E90-LCI 330d SE 6MT
Current: 2012 F30 328i Luxury 8AT
2015 Audi A6 Avant Ultra, Black Edition (sorry!)